Robotics - Recursive function for fractal.

Question

I'm currently working with Myro/Calico with Robotics. I'm trying to run a recursive function of a fractal. I'm using Python.

I've been following pseudocode here. Fractal

So far I've tried to implement the first step without recursion. And it runs well

# 1 foot per 2 seconds.  x * 2 = feet desired.  
def fractal(x):
    waitTime = x*2
    turnRight(1, 0.825) #90 degree turn
    forward(1, x/3) #move length/3 steps
    turnLeft(1, 0.55)#60 degree turn
    forward(1, x/3) #move length/3 steps
    turnRight(1, 1.1) #120 degree turn
    forward(1, x/3) #move length/3 steps
    turnLeft(1, 0.55) #60 degree turn
    forward(1, x/3) #move length/3 steps

While this works, my goal is to go through this recursively, but make a smaller curve at each iteration. I attempted to do it, but my robot isn't moving as desired.

Here's my attempt at recursion

def fractal(x):
    waitTime = x*2
    if (x == 1):
        forward(x/3)
    else:
        (x-1)/3
    turnLeft(1,0.55) #60 degrees
    if (x == 1):
        forward(x/3)
    else:
        (x-1)/3
    turnRight(1, 1.1) #120 degree turn
    if (x == 1):
        forward(x/3)
    else:
        (x-1)/3
    turnLeft(1, 0.55)#60 degree turn
    if (x == 1):
        forward(x/3)
    else:
        (x-1)/3

My robot is only turning left and right, but it's not making the full shape. The one without the recursion started the fractal. I just need recursion to go through the whole fractal.

Answer 1

I'm thinking this is what you want to do

x = number of interations
l = lenth(wait time)
def fractal(x, l):
    if (x == 1):
        forward(l/3)
    else:
        fractal((x-1), l/3)
    turnLeft(1,0.55) #60 degrees
    if (x == 1):
        forward(l/3)
    else:
        fractal((x-1), l/3)
    turnRight(1, 1.1) #120 degree turn
    if (x == 1):
        forward(l/3)
    else:
        fractal((x-1), l/3)
    turnLeft(1, 0.55)#60 degree turn
    if (x == 1):
        forward(l/3)
    else:
        fractal((x-1), l/3)